There are more pictures of the event at ANP. The duke's brother and sister-in-law attended with their daughter Elisabeth and Daniel Terberger. They also showed violinist violinist Anne-Sophie Mutter, conductor Kent Nagano and opera director Sir Peter Jonas. I didn't see pictures of other royals though.

Prince Lukas and Princess Alice von Auersperg, née Princess of Bavaria (she is a sister of Auguste Princess of Lippe) have a daughter Olivia Sophie Marie Gobertina.
The little princess was baptized on April 13th 2013.

Leopold, Prince von Bayern and former figure skater Katarina Witt attended the BMW Wiesn Sport Stammtisch Oktoberfest 2013 in Munich, Germany on September 24, 2013. BMW Sports Communication had invited more than 100 international sport stars and VIPs to experience a day at the famous Munich Oktoberfest.

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I had a dream: Let's connect our thoughts together, than we have a mission, let's connect our feelings together, than we have a mood, let's connect our dreams together, than we have a vision and let's connect our mission, our mood and our vision together than we have a perfect life.

__________________"She is a little angel and like her name, she brings sunshine even on cloudy days. From the bottom of our hearts, we would like to thank each and every one of you for your lovely best wishes for our daughter. She feels very loved". HRH Princess Madeleine, Duchess of Hälsingland and Gästrikland on her daughter, HRH Princess Leonore, Duchess of Gotland.Join my group on TRF about British Royal Children

The first King of Bavaria, Maximilian I [Joseph], who had been the reigning Duke of Zweibrücken prior to his succession to the Bavarian Electoral throne, had his own Arms: the Wittelsbach blue and white lozenges overlaid with insignia of kingship.

The five Kings who followed him (Ludwig I, Maximilian II, Ludwig II, Otto I and Ludwig III) all held the same Arms: quarterlings for the Palatinate, Franconia, Burgau and Veldenz, surmounted by the family arms of Wittelsbach and surrounded by the collar of St Hubert.
The Greater Arms included a sable marquee, royal crowns within and above, two crowned lions rampant, and a further three collars including that of the Order of the Golden Fleece.

Arms of the Kings of BavariaLudwig I, Maximilian II, Ludwig II, Otto I and Ludwig III